The term existential philosophy is identified in base64 scheme by the sequence ZXhpc3RlbnRpYWwgcGhpbG9zb3BoeQ==, while the MD5 signature is equal to d6c6310e0ec4e7bf638bbf91274c3aff. The ASCII encoding of existential philosophy in hexadecimal notation is 6578697374656e7469616c207068696c6f736f706879.